Step 1: Recall the context.
ICJS is a flagship initiative of the Ministry of Home Affairs (MHA) to digitally integrate India's criminal justice agencies so they can share data seamlessly.
Step 2: Break down the acronym.
I = Inter-Operable, C = Criminal, J = Justice, S = System. "Inter-Operable" means different agencies can exchange data without friction.
Step 3: Verify with the 5 pillars.
The five pillars are CCTNS (Police), e-Courts, e-Prosecution, e-Forensics, and e-Prisons - all linked under one data-sharing platform. Uttarakhand topped implementation up to January 2026.
\[ \boxed{\text{Inter-Operable Criminal Justice System}} \]